Trending @Wipro; Manager refuses to release from support account

Try to find ways to do Dev work in your support project. All support project have some enhancement work also

They will not release you until that 18 months , only after 18months you will be eligible for rotation

You will be only released incase if there is any rampdown in your team/account.

Put resignation and they relieve you from the project

I have a suggestion. But this is not a good way to go. If you are communicating with client, you can ask client directly to release. Your wipro might scold you. But there is a chance of getting what you want finally.